BT 400 User Manual page 10

Setting up
10
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Important
The two units will need to be linked before you can
start using them. If the link between the units is
broken, the Link indicator lights will flash while they
try to look for each other.
After 30 seconds, if the link is still broken, the Link
indicator lights will flash red. If the link is broken,
check that:
• the mains power is plugged in and switched on at
the Baby unit
• both units are switched on
• the batteries are charged in the Parent unit
• the Parent and Baby units are within range of each
other (in ideal conditions, that's up to 300 metres
outdoors and 50 metres indoors).